Name:

Pneumatic Butterfly Valve

Category：

Butterfly valve

Remark:

D943H, D943W-type pneumatic three eccentric multi-level hard-seal butterfly valve is widely used in metallurgical, power, petroleum, chemical, air, gas, combustible gas and plumbing and other corrosive media pipeline

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Product Details

Product Usage

D943H, D943W pneumatic three eccentric multi-level hard-seal butterfly valve is widely used in metallurgy, electricity, petroleum, chemicals, air, gas, combustible gas and water supply and drainage and other corrosive media pipeline.

Specification

Design and manufacture of standards: GB / T 12238-2008
Structure length standard: GB / T 12221-2005
Connection flange standard: GB / T 9113
Pressure temperature grade: GB / T 12224-2005
Test test standards: GB / T 13927-2008

Structural features

1. The hard seal butterfly valve with three eccentric hard seal structure, the valve seat and disc almost no wear, with the more the more tight sealing function.
2. The ring made of stainless steel, with the advantages of both metal seal and flexible seal, both in the case of low temperature and high temperature, have excellent sealing performance, with corrosion resistance, long service life and so on.
3. The butterfly plate sealing surface using welding cobalt-based hard alloy, sealing surface wear-resistant, long service life.
4. Large-format butterfly plate frame structure, high strength, large flow area, small flow resistance.
5. According to user needs, the valve supply network of hard-sealing butterfly valve can be designed to have a two-way sealing function, the installation of media flow from the restrictions, but also the impact of space location, can be installed in any direction.
6. The drive can be multi-station (rotated 90 ° or 180 °) installation, user-friendly.

Main performance specifications

Nominal diameter	DN（mm）	50-4000
Nominal pressure	PN（MPa)	1.0	1.6	2.5
test pressure	Strength test	1.5	2.4	3.75
	Seal test	1.1	1.76	2.75
	Gas seal test	0.6	0.6	0.6

Product Parts Materials

model		D943H-16	D943W-16P	D943W-16R
Working pressure（MPa）		1.6
Applicable temperature（℃）		≤425	≤200
Suitable media		Water, oil or non-corrosive media	Nitric acid medium	Acetic acid medium
material	Body, disc	WCB	CF8/304	CF3M/316L
	Valve stem	2Cr13	304	316L
	Body sealing surface	Surfacing507	－	－
	Butterfly sealing surface	304＋Flexible graphite	304＋PTFE	304＋PTFE
	filler	Flexible graphite	PTFE	PTFE

The main shape and connection size

PN	DN	L	D	D1	D2	Z-d	b	f	H	H0
1.0	50	108	165	125	99	4-18	20	2	170	130
1.0	65	112	185	145	118	4-18	20	2	170	145
1.0	80	114	200	160	132	8-18	20	2	230	152
1.0	100	127	220	180	156	8-18	22	2	320	192
1.0	125	140	250	210	184	8-18	22	2	345	200
1.0	150	140	285	240	211	8-22	24	2	385	230
1.0	200	152	340	295	266	8-22	24	2	471	297
1.0	250	165	405	355	319	12-22	26	2	533	327
1.0	300	178	445	400	370	12-22	26	2	606	364
1.0	350	190	505	460	429	16-22	26	2	694	404
1.0	400	216	565	515	480	16-26	26	2	757	444
1.0	450	222	615	565	530	20-26	28	2	814	472
1.0	500	229	670	620	582	20-26	28	2	902	522
1.0	600	267	780	725	682	20-30	34	2	1048	590
1.0	700	292	895	840	794	24-30	34	5	1277	810
1.0	800	318	1015	950	901	24-33	36	5	1385	844
1.0	900	330	1115	1050	1001	28-33	38	5	1490	890
1.0	1000	410	1230	1160	1112	28-36	38	5	1620	950
1.6	50	108	165	125	99	4-18	20	2	170	130
1.6	65	112	185	145	118	4-18	20	2	170	145
1.6	80	114	200	160	132	8-18	20	2	230	152
1.6	100	127	220	180	156	8-18	22	2	320	192
1.6	125	140	250	210	184	8-18	22	2	345	200
1.6	150	140	285	240	211	8-22	24	2	385	230
1.6	200	152	340	295	266	12-22	24	2	471	297
1.6	250	165	405	355	319	12-26	26	2	533	327
1.6	300	178	460	410	370	12-26	28	2	606	364
1.6	350	190	520	470	429	16-26	30	2	694	404
1.6	400	216	580	525	480	16-30	32	2	757	444
1.6	450	222	640	585	548	20-30	40	2	814	472
1.6	500	229	715	650	609	20-33	44	2	902	522
1.6	600	267	840	770	720	20-36	54	2	1048	590
1.6	700	292	910	840	794	24-36	40	5	1277	810
1.6	800	318	1025	950	901	24-39	42	5	1385	844
1.6	900	330	1125	1050	1001	28-39	44	5	1490	890
1.6	1000	410	1225	1170	1112	28-42	46	5	1620	950
2.5	50	108	165	125	99	4-18	20	2	170	130
2.5	65	112	185	145	118	8-18	22	2	265	210
2.5	80	114	200	160	132	8-18	24	2	310	233
2.5	100	127	235	190	156	8-22	24	2	343	242
2.5	125	140	270	220	184	8-26	26	2	385	254
2.5	150	140	300	250	211	8-26	28	2	445	580
2.5	200	152	360	310	274	12-26	30	2	510	297
2.5	250	165	425	370	330	12-30	32	2	569	339
2.5	300	178	485	430	389	16-30	34	2	653	375
2.5	350	190	555	490	448	16-33	38	2	730	420
2.5	400	216	620	550	503	16-36	40	2	810	463
2.5	450	222	670	600	548	20-36	46	2	850	495
2.5	500	229	730	660	609	20-36	48	2	940	566
2.5	600	267	845	770	720	20-39	58	2	1150	630
2.5	700	292	960	875	820	24-42	58	5	1195	727
2.5	800	318	1085	990	609	24-36	58	5	1268	810

Structure picture

Inquiry

If you have any enquiry about quotation or cooperation,please feel free to email us at info@cnlgvalve.com or use the following enquiry form. Our sales representative will contact you within 24 hours. Thank you for your interest in our products.

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Pneumatic Butterfly Valve

Butterfly valve

Product Details

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